Chosen Solution
Also, I spilled water on my desk and soaked the very bottom of my 2013 mac pro. Now it won’t turn on. Any troubleshooting tips? And most importantly, where are the water sensors located? I need to see if my 1 year warranty will cover this. Thanks in advance.
There are many moisture sensors in all of Apples gear. I would focus on fixing the system than worrying about the sensors. Are you up to fixing your own system or are you going to bring it into Apple? Given you got the system wet they will see the damage. I suspect you killed the interconnect board located at the base of the system. Here is the IFIXIT guide to replace it: Mac Pro Late 2013 Interconnect Board Replacement. The Mac Pro is by far one of the easiest Apple system to repair! But the cost of the parts can be expensive! Apple P/N: 661-7527 Interconnect Board
I don’t think there is one since this is a desktop machine, it was never designed with accidental spills in mind. Checking the photos on ifixit did not find anything like water sensors either.